Abstract: Search engine and text filtering technique are all used to help users to gain information they need quickly and precisely. On the basis of researching on user’ s needs expressing methods in search engine and text filtering technique, the paper proposes a method which uses samples’common feature to express user’s needs, combined with search engine and text filtering technique, it sets up an information collection system for product design.

Key words: Text feature; Product design; Search engine; Information collection

摘要： 搜索引擎和文本过滤技术都是为了帮助用户快速、准确地获取用户需求的信息。在研究搜索引擎和文本过滤技术中的用户需求表达方法的基础上，提出了一种利用样本公共特征来表达用户需求的方法，结合网络上的搜索引擎和文本过滤技术，构建了一个面向产品设计的信息搜集系统。

关键词: 文本特征；产品设计；搜索引擎；信息搜集